Bore sight it at 25 yards to hit the paper. 1 round down.

Adjust your scope accordingly at 25 yards. 2 rounds down.

Fire a 3rd round with your adjusted scope and your 3rd boolit should be pretty damn close to dead on where you need it to be at 25 yds.

Consult your JBM ballistic chart and adjust your scope to whatever your sight in range is. Try 250 yards.

Boolit #4 just confirms your shot at 250.

Boolits 5-20 are just because you are at the range and it's damn fun to shoot that metal clanger at 200 yards and you need to burn up last year's hunting ammo

Boolits 21-550 are because you brought the M1 Garand, the M1A, the Ruger R516, and the AR-10 and felt like going all zombie mode at the range. Damn metal clanger really pisses me off.

I hate sighting in scopes. WAY too expensive for me.